There is such thing. There is one sitting on my couch right now. I thought my post was pretty clear. My religion is Christianity, since I was brought up with those teachings and I'm most fluent in that belief system, while my own spiritual philosophy is that I don't have any special knowledge, outside of faith, to know whether or not any one religion is better than others, or if there even is a god. I think my term agnostic Christian fits pretty well. Also, believing in God is not a Christian's only charge.
There are also atheist Jews, fyi.